Drill-bit for wells.



`N0- 839,837. PATENTED JAN. 1, 1907.

C. W. GUTTZEIT.

DRILL BIT FOR WELLS.

uruoulon Hmm un. 2.1906.

6 SHEETS-SHEET 1.

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Na. 839,837. PATBNTBD JAN. 1, 1907.

\ c. w. GUTTZBIT.

DRILL BIT FOR WELLS. urmonron FILED Arn.z,19oe.

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No. 839,837. PATENTED'JAN. l, 1907-l G. W. vGrUI'TZEIT.

DRILL BIT POR WELLS.

APPLIUATION FILED Arx. 2. 190e.

5 SHEETS-SHEET 3.

No. 839,837. PATENTED JAN. l, 1907. C. W. GUTTZEIT.

DRILL BIT POR WELLS.

APPLIoATIoN FILED 11.2.1906.

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./f l 1 l Mii/fesses: im jfi/ewor 5 snnnfrs-SHBET 4.

CHARLES W. GUTTZEIT, OF HIGH BRIDGE, NEW JERSEY, ASSIGNOR TOv UNITED vsua'rns PArENT OFFICE. f

TAYLOR IRON & STEEL COMPANY, OF HIGH BRI-DGE, NEW JERSEY, A

CORPORATION. OF ANEW JERSEY.

DRILL-BIT Fon WELLS.

To all whom it may concern: n Be it known that I, CHARLES W. GUTTzErr,

- a" citizen of the United States, residing at Hi h Bridge, in the county of Hunterdon and State' of' New Jersey, have invented certain new and useful Im rovements in Drill- Bits for Wells, of whiyc the following is va specification. -l

This invention relates to bits or boringtools for drilling purposes, andfis especially designed for use in drilling wells' either through earth or solid rock,l or both.

One of the objects of the invention is to produce a drill that will operate by the rolling action of a number of cutters in the form of conical rollers, which as the drill revolves serve to loosen or grind up the soil and rock,

with the assistance of water, that is customary in well-drilling operations.

A further object o the invention is to pro vide a form of drill in which the cutters will have a true rolling engagement with the ound at the bottom of the hole, and'therey prevent slippin' between any part of the engaging surface o the roller and the ground that would have the effect of unequal or undue wear on the roller and impair its 'usefulness and length of use. y

A further object ofthe invention is to' provide in Such an organization of rolling cutters lan axially-extending bit at the center of the head that will o crate to drill out a small hole in advance of t e rollers.-

A further object of the invention is to provide a form of bit with roller-cutters havin a true rolling engagement with the ground and in which one of the roller members extends to the axis of the drill and serves to engagethe earth at the centralpart of the hole. Embodirnentsv of my invention are illustrated in the accompanying drawings, whereon 'Figure 1 is a view showing the relative position of thel several cutting-rollers. Fig. 2 is a transverse section through a hole being drilled,V showing the lzones traversed by the diHerent cutting-rollers and the portion engaged by the center drill or bit. Fig. 3 is a transverse section of the headI with the rollers removed. lFig. 4 is a bottom plan view of the head with the rollers removed. Fi 5 is a partially transverse section throug the head. Fig. '6 is a fragmentary sectional Specification of Letters Patent. Anplication filed April 2. 1906. Serial No. 309,244.

. axis in place of a center-drill bit.

Patented .Tami 1. 1907.

grammatic view similar to Fig. 2, showing the use of an inner roller extending to the Fig. 12 is a side elevation of a drill-bit that may be used at the center of the drill-head. Fig. 13

is an end view of the cutting end of the center drill, and Fig. 14 is a view ofthe opposite end of the center drill.

The device comprises a head member or frame (denoted generally by A) in which arev rotatably supported a number of conical rollers or cutters. These rollers are rouped or located around the head, so that t e zones of the material operated upon by the series of cutters will meet, as indicated in Fig. 2. In the construction shown in Fig. 1V and elsewhere there is a center cutting-bit B, which may be of the form indicated in Fig. 12 or otherwise. This bit is shown as a regular cutting-bit whose bottom edge cuts and removes the earth as the drill rotates. This drill B will occu K y the osition indicated at b in Fig. 2, an there have a substantially horizontal surface or one transverse to the axisof the cutter, as shown at c in this flgure. The bottom of the hole drilled from the circle c to the side wall d of the hole willwith the construction shownI consist of a number of contiguous zones that are denoted in Fig. 2 as e, f, g, and h. Each of these zones may be engaged by one or more of the cutters. In the construction of Fig. 1 the innermost cutting-roller 20 will operate on the ground at the zone e. This cutter is arranged with its axis perpendicular to the main axis of the drill-that is, its axis is horizontal; but the cone or angle of the engaging surface of the roller converges to the drill-axis, the vertex ofthe cone-frustum lying in the axial line X.

The cutting-rollerj21, it will be seen from Fig. 1, is spaced from the axis X a greater distance than i's the roller 20., its inner edge being about the same distance from the axis as the outer edge of the roller 20'. By this arrangement the zone traversed by the roller there ore the ground will IOO 4 .y with proJectlons on their c onical engaging 21,will be the zone f, (indicated in Fig.- 2,) and hence the zones e and f are contiguous. The roller 21 has its laxis also perpendicular' to the axis X of the driller, and the vertex of its conical surface lies in the line X.

Another cutting-roller 22, identical with lthe roller 21, isshown as supported to rotate equidistant from the axis and in a position symmetrical with that 'of the'roller 21. By this arrangement the two rollers 21 and 22 will follow each other around the zonef. The roller 22 also has the vertex of its conical'surface lying in the axis X, and being symmetrically arranged with respect to the roller 21 their two vertices will be a common point.

The'zoneg is traversed in the present construction by three rollers 23, 24, and 25, that are supported to rotate in the head at an equal distance therefrom and are circularly arranged with their axes perpendicular to the axis X. These rollers have their conical cutting-faces converging in the axis X, and the vertices of the three will be a common point in such xis.

The one indicated by h is in the present construction traversed by six rollers 26, 27,

28, 29, 30, and 31. These rollers have their axes inclined to the .axis X and downward; 1but the vertex of each roller. lies in the axis X and in a common point. From this construction it will be seen that the engaging portion of every one of the rollers has a true rolling engagement with the ground at the l bottom of the hole and that therefore every point engaging the ground of all the rollers will ave the samewangular velocity as the drill rotates. By this means there will be no slipping between the roller and the earth, tending to unduly Wear the engaging face of the drill. These rollers preferably are provided surfaces that will operate todisinte rate or grind up the earth and rock, thereby orming a sort of slime or mud, which by the usual hydraulic means is removed from the hole.l

. In Fig. 1 the roller 25 is shown asprovided with projections 32. These projections are shown as elevated above what would be the conical face of the roller whose vertex lies in the main axis X of the head. In-this figure only one roller is shown as provided with these (projections, but they are preferably forme on all of the rollers.

Various means may be employed for rotatably supporting-,these severahrollers in the head A. In the present construction the rollers, 'with the exception of the innermost roller 20, areeach rotatably mounted on a-v pindle. This mounting, 'is bestpshown .in ig. 6, in which the roller 26 is"r`otatably mounted on a spindle-33, .thatis secured in blocks 34 and 35,'extendingfro`m the head A i by pins 36. The other rollers except the roller 20 are similarly mounted, and need not be further. described. l

{ If preferred, the center bit may be i omitted and the innermost roller extended to the other rollers will traverse the remaining zonesf, g, and 7i in thc same manner as indicated in Fig. 2. y

The innermost roller, whether a true cone, as indicated in Figs, 9I and 11, or a frustoconical roller, such as the roller 20 of Fig. 1, may be supported by having a spindle fast thereto or integral therewith, as shown in iff. 9. thea roller 40 rotatesin abearing-box 44, made in two sections amd suitably secured together. The spindle 4,3 is provided with a fiange 45 to prevent longitudinal movement of the spindle in the bearing. This form of 'bearing is provided `for the roller 20 also.

The several rollers or sets of rollers being symmetrically disposed, or approximately so, each roll or set of rolls in each zone will tend to counteract the effect of theother rollers in the same zone to produce any side motion of the drill, thereby making the`drill selfcentering. Furthermore, the number of the rolls or sets Aof rolls can be increased or decreased as long as a substantially symmetrical arrangement is provided to make the vdrill self-centering.

Another advantageous lfeature of the construction shown is that the bottom of the hole being drilled is conical, which will keep the drill working in a straight line and prevent its moving sidewise.

The center drill or bit, as shown separately in Figs. 12, 13, and 14,-comprises as'hank'50, having a tapered end 51, whereby it isse# cured in a socket -52 in the head A by any suitable means,l such as a keyf (notshown) passing through a slot 53 in the bit. At vits working end it is provided with l:a 'series` of r :ongs or cutters, in the form slip-wnhaving wallor side of the 'cutters alines with the cy- In such instance the spindle 43 of' fourl cutters 54, 55, 56, and 57. .-"Ilre'sei'cut-A ters are,l shown-as of the same length; but

their cross-section is different. f The 'outer IOO riol

li'ndrical .portion of the shank 50;- -butA the f head, the head beingy Er ricalljT opposite in position. The cutter 55 l to engage the ground in adjacent zones', the has lts inner wall 61 substantially concentric With its outer peripheral wall 62. These two walls are joined by side walls 63 and 64, that are made converging and one of which acts as a cutter, according to the direction of rotar tion. The fourth cutter, 56, has an inner wall 65 concentric with its outer peripheral wall 66, which Walls are connected byconverging side Walls 67 and 68.

It willbe observed that the inner walls of the cutters 55 and 57 are spaced from-the axis about half of the radius and also that the inner Wall 65 is spaced from the axis agreater distance than the inner walls of the two similar cutters. By this construction there will be three different zones acted on by these cutters. The cutter 56will take an outer zone about one-third of the radius of the drill. The two cutters 55 and 57 will operate on the outer zone about half of the radius of the drill, While the larger cutter 54 will operate throughout the radius of the drill. free space between each of the cutters permits the material cut to ass outward and keep the cutters clear an( insure rapid and eiiicient operation. The ends of the four cutters are shown as lying in a plane perpendicular to the axis of the drill.

Having thus described `my invention, I claim 1. In a well-drill, the .combination ofa head, and a plurality of rlling members rotatably supported in the head and organized to engage the ground as the drill is advanced, the rolling members having conical working surfaces ,whose vertices lie in the axis oi the head.

2. In a well-drill, the combination ofl a head, and a plurality of rolling members ro-A to vengage the ground as the drill isadvanced,

the rolling membersv having .coni cal j engaging surfaces Whose vertices lie in the axis of the ally-extending boring-l tion.

4. Ina Well-drill, the combination of` a head, a plurality of rollingmembers rotatably it, at the central por;

supported in the head, and-organized to engage the ground in adjacent zones, .the rolling members having conical engaging surfaces Whose vertices lie `in the axis of the head, the

head being provided with an axially-extending boring-bit at the central portion.

v5. In a well-drill, the' combination of a head, and a plurality of rolling members rotatably supported in the head, and organized The ovided with an .axi-I rolling members having conical engaging surfaces whose vertices 11e 1n the axis of the head, the rollers being provided with projecf ,boringit at the central portion.

6.4 In a well-drill, the combination of a head, and a plurality of rolling members rotatably supported in the head and organized to engage the ground as the drill is advanced, the rolling members having conical engaging surfaces Whose vertices lie in the axis of the head, the rollers being provided with projections on their engaging4 surfaces.

7. In a Well-drlll, the combination of a head, and a plurality of rolling members -rotatably supported in the head and organized to engage the ground as the drill is advanced, the rolling members having conical engaging surfaces Whose vertices lie in the axis of the head, some of the rollers having their axes inclined to the drill-axis. f

8. In a well-drill, the combination of a head, and a plurality of rollingmembers rotatably supported in the head, and organized to engage the ground in adjacent zones, the rolling members ,having conical engaging sur- "faces whose vertices lie in the axis of the head, some of the rollers having theirfaxes inclined to the drill-axis and converging forward.

tatably supported in the head, and organized to engage ,the ground as the drill is advanced, the rolling members having conical engaging surfaces Whose vertices Alie in the axis of the head, some of the rollers having their axes extending perpendicular to the axes of the head,

andthe other rollers having their axis inclined to the drill-axis.

10. In a well-drill, the combination. of a vhead,.and a plurality of rolling members rotatably supported in the head, and organized to engage the ground as the drill is advanced, the rolling members having conical engaging surfaces whose vertices lie in the axis of the headsome of the rollers having their axes extendin perpendicular tothe axis of the head, an rollers having their axis inclined to -the drill-axis and converging forward. 1'1. In a'Well-drill, the combination `of a head, and'a plurality of rolling members rotatably supported inJ the head, and organized to engage the ground as the drill is advanced, the `rollingmembers having conical engagmg surfaces whose vertices lie in the axis of the head, some of the .rollers having their axes extending perpendicular to the axis' of the head, and some of the rollers having their axis inclined to the drill-axisand an axial boring-bit at the center of the head.-

. 12. In a well-drill, the combination of a head, and a plurality-of rolling members r0- tatably' supportedin the head, and organized to engage the ground in adjacentzones, .the

rolling members having conical engaging suifaces Wh'ose vertices lie in the axis of the head, some of the rollers having their axesv extending perpendicular to the axis of the head, and some of the rollers having their axis inclined to the drill-axis.

13.'In a well-drill, the combination of a' p head, and a plurality of rolling members rotatably supported in( the head, and organized -to'I engage the ground in adjacent zones, the rolling members having conical engaging suraxis inclined to the drill-axis and converging forward.

, 14.111 a well-drin, the combination of a head, and a plurality of rolling members'rotatably supported in the head and organized to engage t e ground in adjacent zones, the rolling members having conical engaging surfaces whose elements convergeat the axis of the head, some of the rollers having their axes extending perpendicular' to the axis of the head, and some of the rollers having their axis inclined toethe drill-axis and converging forward, andan aXial boring-bit at the center of the drill@ 15. In a Well-drill, 'the combination of a head, and a plurality of rolling members rotatably supported in the head, and organized to engage the ground as the drill is advanced,

the rolling members having conical engaging surfaces Whose vertices lie in the axis of the head, the outer rollers having their axes inclined forward.

16.. In 'a well-drill, the combination of a head, and a plurality of rolling members rotatablysupported in the head, and organized to engage the ground as the drillis advanced, the rolling members havingv conical engaging surfaces whose vertices lie in the axis of the head, the outer rollers havin their axes inclined forward, and some of t eother rollers v having their axes extending perpendicular to f head, and a plurality of rolling members rotatably supported in the head, and organized to engage t e ground in adjacent zones, the rolling members having conical engagingjsurfaces whose vertices lie in the axis yof'the head?, the outer rollers having their axes inclined, and other rollers having theix axes ex- 20. In a well-drill, the combination'of al i head, and a plurality of rolling members rotatably supported in the head and disposed to engage the ground in adjacent zones, the rolling members having conical engaging surfaces Whose vertices lie in the axis of the head, one of the rolling members extending to the axis of the drill.

21. In a well-drill, the combination of a head, and a plurality of rolling members rotatably supported in the head and organized to engage the ground as the drill 'is advanced,- the rolling members having conical engaging surfaces whose vertices lie in the axis of the head, the rollers being provided withproj ections on their engaging surfaces, one of thev rollers extending to the axis of the drill.

22. In a well-drill, the combination of a head, and a plurality of rolling members rotatablysupported in the head and organized to engage the ground as the drill is advanced, the rolling members having conical engaging surfaces whose vertices lie in the axis of the head, the outer rollers having their axis inclined forward, and the inner roller extending to the axis of the drill. r

23. In a well-drill, the combination of a. head, and a plurality of rolling members rotatably supported in the head, and organized to engage the ground as the drill is advanced, the rollingmembers` havingconical engaging surfaces whose vertices lie in the axis of the`- head, some of the rollers havingtheir axes extendin 'perpendicular to the axis of the head, an other rollers having their axes inclined to the drillaxis and converging forward, one of the rollers extending to the axis of the drill.

24. In a well-drill, the combination of a Lhead, and a plurality of rolling members rotatably supportedA in the head, and organized 'to engage the ground in adjacent zones, the rolling members havin conical engaging surfaces whoseivertices Iie in the axis of the head, some of the rollers having their axes extending perpendicular to the axis of the head,-and other rolls having their axis inclined to the drill-axis and converging forward, one of the rollers extending to "1e axis of the drill.

CHARLES W. GUTTZEIT. Witnesses:

WILLIAM H. Ran),

E. BYoE.`

ICO

IIO 

